Why do we get brain freeze?

This question was asked by Sarah from Chichester, UK. Brain freeze, or to give it its proper name¬†sphenopalatine ganglioneuralgia (I…

A year in space

On the 27th March 2015, three astronauts will travel from Earth to the International Space Station (ISS). One of them,…

Clinging like a limpet

We’ve known for a long time that limpets are extremely good at hanging onto rocks and other surfaces, but engineers…